.boxs {
    width: 100%;
    height: 100%;
    position: absolute;
}

.box1 {
    width: 100%;
    height: 100%;
    background: #2da4a8;
    position: absolute;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.box2 {
    width: 100%;
    height: 100%;
    background: #2da4a8;
    position: absolute;
    top: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.box3 {
    width: 100%;
    height: 100%;
    background: #2da4a8;
    position: absolute;
    top: 200%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.box4 {
    width: 100%;
    height: 100%;
    background: #2da4a8;
    position: absolute;
    top: 300%;
    display: flex;
    align-items: center;
    justify-content: center;
}